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讨论了双折射对光纤电流传感器稳定性影响，并介绍了一种采用光学偏振控制器、块状玻璃传感头和单光路检测的光纤电流传感器。理论分析和实验结果表明，这种结构的光纤电流传感器能够有效地消除输入、输出光纤及传感头的双折射对系统测量灵敏度的影响，使系统工作稳定可靠。
The influence of birefringence on the stability of optical fiber current sensor is discussed. An optical fiber current sensor with optical polarization controller, bulk glass sensing head and single optical path detection is introduced. The theoretical analysis and experimental results show that the fiber current sensor with this structure can effectively eliminate the influence of the birefringence of the input and output optical fibers and the sensor head on the measurement sensitivity of the system and make the system work stably and reliably.